'We can't forget about Ham': Friday marks controversial space exploration milestone
When Ham set off on his space flight in 1961, he paved the way for the first American to go to space months later.
Sunita Williams breaks record as two ‘stuck’ astronauts take 5.5-hour spacewalk together
During a five-and-a-half hour spacewalk with her colleague Butch Wilmore, Sunita Williams surpassed former astronaut Peggy ...